Home / 33,129.31-45,733.38-21,804.75

Finding the Fourth Proportional to 33,129.31, 45,733.38 and 21,804.75

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Solution

The fourth proportional to 33,129.31, 45,733.38 and 21,804.75 is: 30,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.31 : 45,733.38 = 21,804.75 : x
  2. Step 2: Convert to fraction form
    33,129.31/45,733.38 = 21,804.75/x
  3. Step 3: Cross multiply
    33,129.31x = 45,733.38 × 21,804.75
  4. Step 4: Simplify right side
    33,129.31x = 997,204,917.56
  5. Step 5: Solve for x
    x = 997,204,917.56/33,129.31
  6. Step 6: Final answer
    x = 30,100.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.